Title:
Communication control method
Document Type and Number:
Japanese Patent JP5975162
Kind Code:
B2
Abstract:
When communication is to be performed between communication devices having a directivity control function, a plurality of antenna-setting pairs available for the communication are stored by an initial training, and the communication is started by using one of the plurality of antenna-setting pairs. When the communication quality is deteriorated, firstly, a training signal is transmitted while successively setting each one of the plurality of antenna-setting candidates determined in the initial training in a transmitting antenna of one of the communication devices (400), and the training signal is received in a state where a quasi-omni pattern is generated in a receiving antenna of the other communication device (500). In this way, in radio communication performing beam forming, it is possible to ensure the time synchronization between the communication devices when communication is disconnected or communication quality is deteriorated due to shielding or the like.
Inventors:
Kenichi Hosoya
Kenichi Maruhashi
Orihashi go straight
Kenichi Maruhashi
Orihashi go straight
Application Number:
JP2015189315A
Publication Date:
August 23, 2016
Filing Date:
September 28, 2015
Export Citation:
Assignee:
NEC
International Classes:
H04B7/10; H04W16/28
Domestic Patent References:
| JP2006148928A | ||||
| JP2010171648A | ||||
| JP2011526429A |
Foreign References:
| US20090238156 | ||||
| WO2010027865A2 |
Attorney, Agent or Firm:
Ken Ieiri